Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2431409Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9000000
B2 = 46405160340
ECM
DigitsB1Curves
2550000231 / 280
Estimated T-Level: 24.1 ⓘ
LL
StatusDateUserResidueShift
VerifiedBjorn SkogBD01EB04F9742F170
Verified1999-04-02Christopher G. LewisBD01EB04F9742F171419714
Verified2018-05-22kkmrkkblmbrbkBD01EB04F9742F1758818
History
DateUserTypeResult
2023-08-29Sid & AndyNF-PM1
B1=9000000, B2=46405160340
2023-07-17JossNF-PM1
B1=1000000, B2=3645762120
2023-03-22JossNF-PM1
B1=1000000, B2=1580899320
2023-03-05JossNF-PM1
B1=1000000, B2=548467920
2023-02-09Architects CubedNF
no factor from 2^69 to 2^70
2021-07-26TJAOINF
no factor from 2^68 to 2^69
2019-07-17TJAOINF
no factor from 2^67 to 2^68
2019-03-26Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2018-05-22kkmrkkblmbrbkC-LL
BD01EB04F9742F17
2017-10-23JossNF-PM1
B1=600000, B2=6000000, E=6
2017-07-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-02-27James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-18JossNF-PM1
B1=50000
2010-10-08Oscar ÖstlinNF-PM1
B1=40000, B2=640000, E=6
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61